SM3CER Contest Calendar
- SM3CER Contest Service is one of the most up-to-date and complete contest calendar available online since the early internet era, it offers monthly constest calendar with rules links and results

Signal Engineering
- Signal Engineering technologically advanced antennas with modern design and construction technique. Up to date information about current line of high performance 10 and 11 meters antennas.

Texas Packet Radio Society
- TPRS invented TexNet, a network using a combination of wireline and wireless technology to link hams in most of the major population centers in Texas, Oklahoma, Arkansas, Missouri

KG4YZY / N4SCF Repeater System
- Information and a photo album of the KG4YZY 146.760mhz and N4SCF 442.650mhz repeaters in New Port Richey, FL. System is linked 24/7 into the NI4CE regional system. Online streaming & echolink online.

UI-VIEWpop
- UI-View is an APRS client that runs on Windows. This application differs from most APRS software in that it isn't designed just to be used with TNCs in terminal mode. UI-View also supports TNCs in KISS mode, AGWPE host mode and BPQ host mode. The 32 bit version of UI-View also supports WA8DED/TF host mode, and the variant of it used in the SCS PTC-II and PTC-IIe.